Well, the1, how do you suggest we judge people if not by their actions?
I say we can like, dislike, love, hate whoever we want if we base these feelings off their actions. Should we act off of these feelings? No, I'm not saying that.
If there's someone who always steals your lunch money, it's okay to dislike him. And if he always rapes children, then it'll be okay to extremely dislike him. And extreme dislike is hate. And it makes sense in this case.
You seem to imply our feelings for others should not be based off their actions. So what should they be based off of?